Learn everything about Reverse DNS
You can perform a Reverse DNS lookup, no matter what device you are currently using. Yes, you can perform a Reverse DNS lookup on Windows, Linux, macOS, or through a browser. If you choose the last option, you can technically do it through a mobile phone or a tablet without installing any additional application.
See to which domain does an IP address belongs in a fast and easy way.
In this article, we are going to explore the Reverse DNS zone. It is a special type of DNS zone that you could need so other servers can verify the IP address of their incoming mails. It works very similarly to the Forward DNS zone, but there is a significant difference.
The first thing about DNS that we all learn is that “it is a translator that understands domain names and gives us their IP addresses”. But what does it mean rDNS? It is the opposite service to the traditional DNS. It will translate the IP address to its domain name. Why would you want that? Let’s break down rDNS in detail to understand it.
Reverse DNS or rDNS is a quering technique that DNS (Domain Name System) uses to perform a special type of query that has as an input an IP address (IPv4 or IPv6 address) and an output a name record (A record or AAAA record). It is called reverse because it mirrors the typical forward DNS lookup – IP address to a domain name.
To check various DNS records is a need for every administrator. Purposes are many to check if you already added a specific record to your DNS, know how DNS propagation is going, get the TTL of a record, etc.
DNS records have their own objectives. In any case, the Dig command can be very useful for you.
The PTR record is one of the essential types of DNS record that is also known as a pointer record. Its main purpose is to associate an IP address to the corresponding domain name. With its help, it is possible to check and prove that the exact IP address is associated with the accurate domain name. Additionally, it confirms that it is not some kind of scam. Thanks to this record, verifying separate elements or services, such as a mail server, is an easy task.
The Domain Name System (DNS) is a decentralized and hierarchical naming database. It provides a way for translating and mapping the domain names into IP addresses. It is compared with a phonebook, where every domain corresponds to a particular IP address. That is why it is so beneficial for humans because it is easier to remember names and not long and difficult numbers for us. Yet, machines connect and communicate with numbers. For that reason, the Domain Name System is an essential part of the Internet.